Baking Soda and Vinegar Experiment Worksheet
What you do (Acid + base → gas): 1. Pour vinegar into the plastic bottle, standing on a tray. 2. Spoon two teaspoons of baking soda into the balloon. 3. Stretch the balloon over the bottle’s mouth, letting it hang to the side. 4. Lift the balloon so the soda drops in, and keep faces back.
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- 1.True or false: baking soda water is neutral. (a) False (b) True
- 2.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
- 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
- 4.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
- 5.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) nothing at all (d) lots of fizzy bubbles
- 6.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) hydrogen (d) helium
- 7.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
- 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon
- 9.True or false: baking soda water is an acid. (a) True (b) False
- 10.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
- 11.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) a funnel or spoon (d) a seed
- 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a funnel or spoon (d) a battery cell
- 13.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
- 14.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
- 15.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
- 16.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
- 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
- 18.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
- 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) True (b) False
- 20.🫧 Which of these is an acid? (a) sugar water (b) vinegar (c) baking soda water (d) detergent water
- 21.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
- 22.🔍 Which is the odd one out? (a) salt water (b) lemon juice (c) sugar water (d) plain water
- 23.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) baking soda (c) a magnet (d) a battery cell
- 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
- 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
- 26.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
- 27.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) plain water (d) soap solution
- 28.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
- 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
- 30.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) an empty bottle (c) a magnet (d) a balloon
- 31.🫧 Which of these is neutral? (a) tamarind water (b) vinegar (c) plain water (d) baking soda water
- 32.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
- 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
- 34.True or false: vinegar is a base. (a) False (b) True
- 35.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
- 36.True or false: salt water is neutral. (a) False (b) True
- 37.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
- 38.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it turns blue (d) it grows bigger
- 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
- 40.True or false: tamarind water is an acid. (a) True (b) False
Answer key
- False
- rinse with clean water
- True
- True
- lots of fizzy bubbles
- carbon dioxide
- True
- the kind of balloon
- False
- neutral
- a seed
- a battery cell
- False
- not needed
- True
- keep it away from eyes
- we change it
- neutral
- False
- vinegar
- False
- lemon juice
- baking soda
- we measure it
- False
- needed
- plain water
- True
- we keep it the same
- a magnet
- plain water
- False
- True
- False
- True
- True
- very little fizzing
- it grows bigger
- size of the balloon
- True
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids